Blushing is the most peculiar and most human of all expressions.

Animals manifestly enjoy excitement, and suffer from annul and may exhibit curiosity.

I am not apt to follow blindly the lead of other men

The limit of man s knowledge in any subject possesses a high interest which is perhaps increased by its close neighbourhood to the realms of imagination.

Hence, a traveller should be a botanist, for in all views plants form the chief embellishment.

Even the humblest mammal's strong sexual, parental, and social instincts give rise to 'do unto others as yourself' and 'love thy neighbor as thyself'.

I see no good reasons why the views given in this volume should shock the religious views of anyone.